Robert i



UNITED STATES PATENT OFFICE.

ROBERT I. MARCHER, OF NEW' YORK, N. Y.

APPARATUS FOR PREPARING ELLIPTICAL FRAMES FOR GILDING'.

Specification of Letters Patent No.

T0 all whom t may concern:

Be it known that I, ROBERT I. MARCHER, of the city, county, and State of New York, have invented a new and Improved Machine for Preparing Toeden Oval Frames for Gilding; and I do hereby declare that the following is a full, clear, and exact descrip tion of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure l, is a side view of my invention, the base to which it is attached and also the work t-hereon being bisected vertically through the center. Fig. 2, is a plan or top view of ditto.

Similar letters of reference indicate corresponding parts in the two figures.

This invention consists in a peculiar arrangement and adaptation of the well known trammel for the purpose of giving a positive or arbitrary elliptical movement to a tool, said movement corresponding with the shape of the frame to be operated upon, so that the tool may traverse over the frame and properly distribute the compound o-r substance thereon which receives the gold leaf.

To enable those skilled in the art to fully understand and construct my invention I will proceed to describe it.

A, represents a platform or base on which the oval frame B, to be operated upon is secured, and O, is a vert-ical metal bar secured to the platform or base A, and having two slots or grooves a, a, formed in its upper surface, said slots or grooves crossing each other at right angles as shown clearly in Fig. 2.

B, is a horizontal metal bar which is slotted longitudinally nearly its whole length and has two blocks b, b', secured to its inner end, in which arbors c, are fitted loosely, one in each. The lower end of each arbor c, has a flat portion d, formed on it, and these portions d, are fitted and work in the grooves a, e. The outer end of the bar I), is supported by a foot E, said foot being on the platform or base A. This foot is formed of a vertical bar e, which is secured to the bar D, by a screw bolt f, said bar e, having a cross bar g, formed at its lower end for a base. To the bar D, two guides it, k, are attached by set screws z'. These guides are vertical bars having horizontal portions j, at their upper and lower 21,430, dated September 7, 1858.

ends, the portions y', being notched or recessed to receive the edges or sides of a metal plate F, the lower end of which is formed to correspond inversely with the pattern of the frame to be operated upon. The plate or tool F, is fitted loosely in or between the guides 71 lz.

The bar D, is slotted longitudinally so that the several parts attached thereto may be adjusted as circumstances may require, to wit, the plate or tool F, by adjusting the guides h, 72, and the rest or foot piece E, and the block b, by relaxing their screw bolts and shoving them either way on the bar to the desired spots and then screwing up the nuts of the bolts.

The frame B, is adjusted on the platform or base A, so that the upright bar O, will be precisely at its center. The frame B, is then covered as usual with the material (glue and Whiting) used for the ground or body to receive the gold leaf, and this material fills the pores of the wood. The bar D, is rotated by hand or otherwise and the tool F, takes off all of the superfluous material and smooths in a perfect manner that which remains on the frame. The frame B, has the usual or any proper number of coats of whiting applied to it, and the tool or plate F, is allowed to rise to accommodate the increasing layer. The smoothness and general perfectness of the work is due to the independent or arbitrary elliptical movement of the tool F, which corresponds precisely with the form of the frame. The work consequently can be performed equally as well and as rapidly as the usual reciprocating tool prepares the straight moldings for rectangular frames.

Frames varying in size may be operated upon by the same implement. The tool F, foot E, and blocks b', being adjustable in order to permit this.

I am aware that a bar provided with pins and fitted in slots or recesses crossing each other at right angles forms an old and well known implement termed a trammel for drawing ovals and such implement has been arranged and adapted in various ways, for various purposes, but I am not aware that the implement above named has been arranged as herein shown and used in connection with a. foot piece or rest. I do not claim therefore broadly irrespective of construction and arrangement, a trammel, that is to say, a bar provided with pins which upright grooved o1' slotted bal' C, and the are fitted in cross slots or grooves; but,

I claim as new and desire to secure by Letters Patent,

Providing the bar D, with a foot or support E, and it sliding plate or tool F, when the bar D, is aranged relatively with its frame B, Substantially as and for the purpose herein shown and described.

ROBT. MARGHER. lVtnesses A. R. CAIFT, W. HAUFF. 

